Carbureter.



PATENTED OCT. 30, 1906'.

R. H. GRAY. CARBURETBR APPLIGATIOHII'ILEID Jmuns. 1906.

. fiah'i'iflrqy, W1 TNESSES: 1 VENTOR v I I ATTORNEYS rul- NORRIS PETERSc0, WASHINGTON, D. c.

UNITED STATES PATENT OFFICE.

ROBERT H. GRAY, OF DALLAS CITY, IIiLINOIS.

CARBURETER.

Specification of Letters Patent.

Patented Oct. 30, 1906.

To all whom it may concern.-

Be it known that I, ROBERT H. GRAY, a citizen of the United States,residing at Dallas City, in the county of Hancock and State of Illinois,have invented a new and useful Carbureter, of which the following is aspecification.

This invention relates to a carbureter designed more especially for usein connection with gasolene-stoves. p

In the operation of gasolene-stoves provided with carbureters it iscustomary to discharge the unused gases from the carbureter after theflame of the burner is extinguished, thereby causing considerable wasteof as ar d filling the kitchen with a disagreea le 0 or.

The main object of this invention is to provide a carbureter in whichthe gas therein at the time of extinguishing the burner-flame isretained, so as to be utilized for lighting the fire when it is againdesired and incidentally preventing the uneconomical waste of the gas byescaping into the room and also the accompanyingdisagreeable odor. 1

A further object of the invention is to provide a mechanism forentrapping gas or vapor in the carbureter every time the stove is shutdown.

A still further object is the employment of a mechanism for retaining acharge of gas in the carbureter, which mechanism is adapted; to beactuated by and simultaneously with; the valve controlling the supply ofgaoslene or other fuel from a suitab e source to the stove.

indicate ,of reference. I 5 R ferring to the drawings, A represents a,accomplished by a mechamsm comprising a With these objects in view andothers, as will appear as the nature of the invention is betterunderstood, the same comprises the various novelfeatures of constructionand arrangement of parts to be fully described hereinafter and set forthwith particularity in the claims. A

In the accom anying drawings, which illustrate one of t e embodiments ofthe invention, Figure 1 isa vertical longitudinal section of thecarbureter and controlling mechanism applied thereto. Fig. 2 is a detailsectional view of one of the valves of the controlling mechanism drawnon an enlarged scale.

Corresponding parts in both figures are throughout by similar charactersportion of a gasolene-stove, which may be of lindrical chamber 1, havingaplurality of spaced gauze diaphragms 2, each centrally perforated forguiding the movement of a vavle-stem 3, which extends substantially thefull length of the chamber. The lower head of the chamber 1 is providedwith a discharge-port 4, that discharges the inflammable gas to a burner5 of the stove through the pipe 6. The discharge-port 4 is controlled bya valve 7, secured on the valve-stem 3.

Suitably below the upper head 8 of the carbureter-cylinder, is aartition 9, having a central port 10, whic is controlled by the diskvalve 10 on the upper end of the stem 3'. The space between theupperhead 8 and par} tition 9 forms an inlet-chamber 11, through whichgasolene and air are supplied, the gasolene entering through the tubularmouth 12 at the center of the head 8, while the air is drawn in at oneside through the pipe 13, arranged with its inlet end adjacent theburner, so as to draw in a supply of heated air. The carbureter issupported on the gas or mix ture supply pipe 6 and is located at therear of the stove, where it and the air-supply ipe are concealed by afront plate or guar 14, which may be suitably ornamented to improve theappearance of the stove, this, however, being a common construction ingasolene-stoves.

The tank 0, containing gasolene, is suitably supported above thecarbureter, so as to feed the fuel by gravity thereto, the flow beingcontrolled by a valve 15, Which is adapted to open and close the port 16of the nozzle 17, which latter projects -into the mouth 12. The supplyfrom the tank to the nozzle flows through the conduit 18, having astraining device 19. The valve-stem is supported adjacent its outer endon a bear.-

TOO

ing-post 20, suitably arranged on the mem- I their respective portssimultaneously with the opening of the needle-valve and also to closewith the closing of the latter. This can be done in a variety of ways,one of which is 'tively seated, as shown in Fig. 2. 'words, there is alost-motion connection belever 22, suitably mounted to be oscillateddisposed thereon as to depress the end of the lever engaging therewithsimultaneously with the opening of the needle-valve. The lever 22 isfulcrumed on the top of the guard 14, and the link 24 is connected tothe rear end thereof, so that as the front end of the lever is depressedthe valve-stem 3 is raised and the valves 7 and 10 lifted from theirrespective ports.

When the parts are in the position shown, the apparatus is in fulloperation, gasolene feeding drop by drop from the nozzle 17 through themouth 12 and upon the upper valve 10. From here it passes or flows ontothe partition 9, thence through the port thereof to the upper perforateddiaphragm 2. While passing into the chamber of the carbureter throughthe inlet-chamber 11 the gasolene picks up more or less air, thecomplete carbureting taking place, however, in the carbureter proper,wherein the diaphragms 2 serve the double purpose of separating thegasolene successively into small particles and holding them insuspension thereon for a better action of the air. When it is desired toshut down the stove, the hand-wheel 21 is turned to close theneedle-valve, thereby cutting off the flow of gasolene. At the same timethe valves 7 and 10 are seated, so as to close the inlet and outletports of the carbureter, and thus confine the gas existing therein andhold it in readiness to supply the burner when it is desired to relightthe stove.

When the stove is shut down, the working parts of the apparatus assumethe position shown by dotted lines.

In order to insure proper seating of both valves 7 and 10, one of themis loosely mounted on the valve-stem 3 so that it will seat by its ownweight. In the present instance the upper valve 10 is shown movablymounted on the valve-stem. The stem is slightly reduced or otherwiseshaped to form a shoulder or abutment 25, which is adapted to engage thevalve to uncover the port thereof. When the valve is raised, as shown infull lines in Fig. 1, the valve rests on the shoulder; but when thevalves 7 and 10 are seated the shoulder is disengaged from the valve 10,so as to insure the latter being posi- In other tween the upper valveand the stem. The upper extremity of the valve-stem is provided with anenlargement or head 26, which is engaged by the bifurcated lower end ofthe L-shaped link 24, the link being constructed in the shape shown forthe reason that the valve-stem lies centrally below the mouth 12 and therear end of the lever. extends slightly short of the mouth. The verticalportion of the link is guided through an opening 27 in the head 8 of thecarbureter-cylinder.

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and of themethod of operation will be readily understood by those skilled in theart to which it appertains. It is obvious that by means of the presentinvention a fire can be started instantly by reason of the ever-presentsupply of gas contained in the carbureter during the time the stove isshut down, so that no waiting is required to generate the gas when thestove is to be started, as is necessary in other constructions withwhich I am acquainted. Furthermore, the flame can be instantlyextinguished without the wasteful use of gas escaping into theroom andproducing a deleterious odor.

I have described the principle of operation of the invention, togetherwith the apparatus which I now consider to be the best embodimentthereof; but I desire to have it understood that the apparatus shown ismerely illustrative and that various changes may be made when desired asare within the scope of the invention.

What is claimed is 1. The combination of a burner, a source offuel-supply, a carbureter connected with the source and burner forsupplying inflammable gas to the latter, means in the carburetercomprising separate valves at the inlet and outlet ends thereof forretaining a supply of gas in the carbureter, means for control ling thesupply of fuel from the tank to the carbureter, and a mechanism forsimultaneously actuating both of the said means.

2. The combination of a burner, a source of fuel-supply, a carbureterconnected'with the source and burner for supplying inflammable gas tothe latter, separate valves at the inlet and outlet ends of thecarbureter, means for opening and closing the valves simultaneously, avalve for controlling the supply of fuel to the carbureter, and a deviceconnected with the valve and said means for opening or closing thefuel-controlling valve and valves of the carbuI eter together.

3. The combination of a burner, a source of fuelsupply, a carbureterconnected with the source and burner for supplying inflammable gas tothe latter, a valve between the source and carbureter, two valves in thecar bureter for retaining a supply of gas therein, and mechanismexterior of the carbureter for actuating the three valvessimultaneously.

4. The combination of a burner, a source of fuel-supply, a carbureterconnected with the source and burner for supplying inflammable gas tothe latter, a reciprocating device in the carbureter for retaining andreleasing a supply of gas in and from the same, a rotatable valveintermediate the carbureter and source of supply for controlling theflow of fuel, and a mechanism for actuating the said device and valvesimultaneously.

5. The combination of a burner, a source of fuel-supply, a carbureterconnected with the source and burner for supplying inflammable gas tothe latter, a reciprocating device in the carbureter for retaining andreleasing a su ply of gas in and from the same, a needle-va ve arrangedexterior to the carbureter to control the supply of fuel from the sourceto the carbureter, a mechanism between the stem of the valve and thedevice arranged to cause the latter to release the supply of gassimultaneously with the opening of the needle-valve and to retain asupply of gas when theneedle-valve is closed, and

means for actuating the needle-valve.

6. The combination of .a burner, a source of fuel-supply, a carbureterconnected with the source and burner for supplying inflammable gas tothe latter, inlet and outlet ports in the carbureter, connected valvescontrolling the ports, a valve arranged intermediate the source andcarbureter, and a lever arranged intermediate the latter valve and thevalves of the carbureter whereby all of the valves are opened and closedsimultaneously.

7. The combination of a burner, a source of fuel-supply, a carbureterconnected with the source and burner for supplying inflammable gas tothelatter, inlet and outlet ports in the carbureter, connected valvescontrolling the ports, a valve arranged intermediate the source andcarbureter, a lever, means on the stem of the last-mentioned valve fortilt-V ing the lever, and a link extending'from the lever to a pointwithin the carbureter and connected with the valves in the latter.

8. The combination ofa burner,,a source of fuel-supply, a carbureterconnected with the source and burner for supplying inflammable gas tothe latter, inlet and outlet ports in the carbureter, separate valvesfor the ports, a common valve-stem, and a device extending from a pointwithin to a point without the carbureter and connected with the stem foractuating the valves.

9. The combination of a burner, a source of fuel-supply, a carbureterconnected with the source and burner for supplying inflammable gas tothe latter, inlet and outlet ports in the carbureter, separate valvesfor the ports, a common valve-stem to which one valve is positivelyconnected and the other loosely connected, and means for actuating thevalves.

10. The combination of a carbureter having separate ports, a valve atone of the ports for controlling the supply of mixture there-- from, avalve at the other port cooperating the carbureter whichguide themovementof the said stem.

11. The combination of a carbureter, a

valve for controlling the supply of mixture therefrom, a valvecooperating with the first to hold a charge'of gas in the carbureter, a

valve-stem in the carbureter to which the.

valves are attached, means exterior of the carbureter for actuating thevalve-stem, and a plurality. of perforated diaphragms' in the carbureterwhich serve to guide the movement of the stem.

12. The combination of a carbureter, a

valve for controlling the supply of mixture therefrom, a valvecooperating with the first to hold a charge of gas in the carbureter, astem extending longitudinally of the carbureter to which one valve ispositively connected, a lost-motion connection between the other valveand the stem, and means for actuating the valve-stem. 13. Thecombination of a carbureterchamber, ports at opposite ends thereof, aplurality of gauze diaphragms in the chamber which are provided withcentral perforations, a valve-stem guided by the perforations of thediaphragm, valves on the opposite ends of the stem arranged to close andopen the ports simultaneously, and a device for imparting motion to thevalve-stem.

14. The combination of a carbureterchamber, a partition dividing thechamber into separate compartments, a port in the partition, separateinlets for air and fuel lead' mg to one of the compartments, a pluralityof diaphragms in the other compartment, an outletort, a valve for thelatter, a valve contro ling the port in the partition, -a stem Iconnected with the valves to close and open them simultaneously, andmeans connected with the stem for actuating the same.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of two witnesses.

ROBERT H. GRAY.

Witnessesz L. J. HALL, H. D. MURRY.

